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Old 10-10-2008, 04:09 PM   #1
Team Scream
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Default 2005 STi into 2006 WRX (pan questions)

I am going to swap a 2005 STi engine into a 2006 WRX.
Prior to that I am going to do the driveline swap (trans, rear end, brembos etc.)
When I do the engine swap it will be after I do a complete build on it and I am curios to know which oil pan I should use? The 2005 STi oil pan or the 2006 WRX pan?
I will most likely be staying with the stock 2006 headers when I install the engine so I am more concerned about oil cooler/heat exchanger clearance issues and things like that.
I know that either pan will fit the block and I know the 2006 WRX pan is a no brainer since the car is a 2006 WRX but is the 2005 STi pan going to work.clear everything?

Thanks
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Old 10-10-2008, 04:49 PM   #2
oldhat
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Won't be legal in Cali if you go from 05 -> 06 chassis. Beware.
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Old 10-10-2008, 07:21 PM   #3
Team Scream
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Im thinking it will be really hard for them to even know as long as I use the 2006 ECU and smog related items?
I will only use the long block portion of the engine in the swap.
For all intents and purposes it will still be a 2006 WRX with a 6 speed and Brembos.
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Old 10-12-2008, 10:56 AM   #4
Token-Negro
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This will depend a lot on how much you are swapping over, the hard parts in the drive-train wont be an issue, you plan on going 5x114? the whole deal? Also depends on your goals, do u want to have 100% working DCCD? then you will need to move over the all the wiring, and the ECU, this is were in Cali it will start to get sticky *Possibly* depending on how they do the inspection your car will have the 05 ECU in it, with that cars VIN, not the best situation.

I would just swap everything in, use the WRX Ecu, then a good aftermarket DCCD controller.
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Old 10-17-2008, 06:59 PM   #5
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Quote:
Originally Posted by Token-Negro View Post
This will depend a lot on how much you are swapping over, the hard parts in the drive-train wont be an issue, you plan on going 5x114? the whole deal? Also depends on your goals, do u want to have 100% working DCCD? then you will need to move over the all the wiring, and the ECU, this is were in Cali it will start to get sticky *Possibly* depending on how they do the inspection your car will have the 05 ECU in it, with that cars VIN, not the best situation.

I would just swap everything in, use the WRX Ecu, then a good aftermarket DCCD controller.
Thats exactly what I am planning on doing "T-N" (love that handle by the way lol) I want to use the 05 heads however and as I understand it, there are air pump ports on the 06 heads and NOT on the 05 STi heads, so how do I handle that part of the smog crap?

So the question becomes, which oil pan to use and how do I address the differences in heads?

Thanks
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Old 10-17-2008, 09:07 PM   #6
Token-Negro
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It will be less work to just use the 06 heads, and get the air pump block off plates, then have someone remove the codes via opensource or with a AP.
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